I ported & descreened my MAF over 3 years ago. Car still gets 17mpg around town and 25mpg on the highway and runs perfectly.

Removing the screen will not cause this UNLESS you damaged the sensor itself.

BTW, I don't think this a worthy mod...However it will not cause problems on an M6 car. I have heard that it sometimes causes a idle problem with A4 cars, but I know of two people locally that didn't experience any problems.

 

That would be awesome, but I still only have one....

- BRENT

 

T.P.I.S.(www.tpis.com), did a write up in thier LT-1 Hint book which says:
Flow restriction for the 1994 Camaro with LT-1.

CFM

test 1 all stock.......................409

test 2 TPIS air filter................428

test 3 remove first air entry
(that little vent behind the
dr head light)..........................447

test 4 drill 7 holes
in the filter cover......................475

test 5 hi flow elbow between
MAF and filter assembly............535

test 6 remove MAF screen........559

test 7 52mm with air foil...........605

test 8 remove air filter lid..........618

test 9 remove air filer base.......726

so as you can see.. removing the screen DOES increase your air flow, according to them.
just thought id share with you all.

 

whats this?

"test 3 remove first air entry
(that little vent behind the
dr head light)..........................447"

I have the rest im not sure what this is tho

 

LS1's come with the same mass air housing, and the 02 and newer Z06's don't have a screen at all.

 

its a little vent that connects to the air filter housing. its located behind the drivers side head light.

 

I know a few mentioned this above, but coming from you LT1 gods all at once is more convincing. What is the best method to clean those MAF sensors, i think mine is dirty/damaged because im throwing codes every so often recently after doing the mod.

 

No not you damnit!


I used electronics cleaner on mine, I just cleaned it again recently. I got it at Pep Boys and other people mentioned getting it at Radio Shack. I have heard it is not a good idea to use anything else like brake cleaner, carb cleaner etc on it. I would spend the $5 for the right cleaner to avoid damage to that $3-400 sensor.

 

I used rubbing alcohol. I heard that removing the screen bumps up your timing a bit??? and in return gives you a few horsies ? My newest LT1 still has the screen. I will dyno with and without it when i dyno soon.

 

sounds good, electronic cleaner it is . You recommend taking the sensors out of the MAF or too dangerous of a job

 

mine has been de-screened for over 2 years now, no problems!

 

Why NOT??? It IS a restriction, even if it isn't a big one. The new Z06 MAF's are de-screened from the factory, meaning GM must not see much of a problem with doing so.

I've had mine descreened for over 3 years and almost 50k miles without any problems.

Now some of you getting these insanely low gas mileage numbers; ever think you might want to DO SOMETHING ABOUT THAT??? My car, with 3.73's in my 12-bolt, ported heads and a CC306 cam, questionable O2 sensors that I'll be replacing this year, and a so-so tune, still gets 16-18MPG with mostly highway driving. If I still had the stock gears, it would be getting even better mileage.

If I were only getting 10-13MPG, I'd damn well would be doing something about that; that low of gas mileage gets EXPENSIVE.

 

Ahhhhhh... Don't worry about Trey. With each post, he decredits himself more and more.

The screen is a restriction.

The aftermarket MAFs don't come with a screen.

!screen is A-OK!

Mike

 

I'll second that! lol

 

No problems here with the MAF. I have a GMS MAF and I used the ends that came with it. I'm happy